This week, Dan and Sam compare notes on the two Mercedes-Benz cars they drove, the E400 coupe and 2018 S560 4Matic sedan. Sam ponders whether partially automated systems are a good idea and whether everyone should simply take the Waymo path of highly automated driving that launching without a driver this week in Arizona. With the new Corvette ZR1 about to launch, Dan bemoans its looks and the guys ponder whether this will be the last front engine Vette.